Shpetniy built a prototype of his non-lethal Gatling gun late last year and recently fired up a Kickstarter campaign. At the time of writing, he's raised over £45,675 and absolutely crushed his £3,045 goal. The gun runs off of five AA batteries and comes in three different colours—birch, burnt wood, and black—each with its own rack. The best part? It only costs $85, or £52. [Kickstarter]